A Carnot engine, having an efficiency of n = 1/10 as a heat engine, is used as a refrigerator. If the work done on the system is 10 J, what will be the amount of energy absorbed from the reservoir at a lower temperature?

Anonymous User Physics Thermodynamics 04 Apr, 2020 60 views

When a system is taken from state i to state f along the path iaf, it is found that Q = 50 cal and W = 20 cal. Along the path ibf Q = 36 cal. W along the path ibf is Anonymous User Physics Thermodynamics 04 Apr, 2020 64 views

Two rigid boxes containing different ideal gases are placed on a table. Box A contains one mole of nitrogen at temperature T0, while Box B contains one mole of helium at temperature (7/3) T0. The boxes are then put into thermal contact with each other and heat flows between them until the gases reach a common final temperature. (Ignore the heat capacity of boxes). Then, what will be the final temperature of the gases, Tf, in terms of T0?

Anonymous User Physics Thermodynamics 04 Apr, 2020 64 views

The work of 146 kJ is performed in order to compress one kilo mole of gas adiabatically and in this process the temperature of the gas increases by 7ºC. The gas is (R = 8.3 J mol-1 K-1)

Anonymous User Physics Thermodynamics 04 Apr, 2020 89 views

A system goes from A to B via two processes I and II as shown in the below figure. If and are the changes in internal energies in the processes I and II respectively, then Anonymous User Physics Thermodynamics 04 Apr, 2020 59 views

The temperature­ entropy diagram of a reversible engine cycle is given in the figure. Its efficiency is Anonymous User Physics Thermodynamics 04 Apr, 2020 62 views

Two thermally insulated vessels 1 and 2 are filled with air at temperatures (T1, T2 ), volume (V1, V2 ), and pressure (P1, P2 ), respectively. If the valve joining the two vessels is opened, the temperature inside the vessel at equilibrium will be

Anonymous User Physics Thermodynamics 04 Apr, 2020 83 views

One mole of ideal monoatomic gas is mixed with one mole of diatomic gas . What is for the mixture?

Note: denotes the ratio of specific heat at constant pressure, to that at constant volume.

Anonymous User Physics Thermodynamics 04 Apr, 2020 60 views

During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio for the gas is

Anonymous User Physics Thermodynamics 04 Apr, 2020 56 views

1 mole of a gas with = 7/5 is mixed with 1 mole of a gas with = 5/3, then what is the value of for the resulting mixture?

Anonymous User Physics Thermodynamics 04 Apr, 2020 62 views

An insulated container of gas has two chambers separated by an insulating partition. One of the chambers has volume V1 and contains ideal gas at pressure P1 and temperature T1. The other chamber has volume V2 and contains ideal gas at pressure P2 and temperature T2. If the partition is removed without doing any work on the gas, the final equilibrium temperature of the gas in the container will be

Anonymous User Physics Thermodynamics 04 Apr, 2020 79 views

Area bounded by the curve y = x + sinx and its inverse function between the ordinates x = 0 and in sq. units is

Anonymous User Maths Area 02 Apr, 2020 80 views

The area bounded by , axis of abscissa and two ordinates corresponding to two points of minima of the function y = f(x) is

Anonymous User Maths Area 02 Apr, 2020 65 views

## The area bounded by   and  is The area bounded by and is

Anonymous User Maths Area 02 Apr, 2020 62 views

## The area enclosed between the curve  and the co-ordiante axes is The area enclosed between the curve and the co-ordiante axes is

Anonymous User Maths Area 02 Apr, 2020 60 views

## The area (in square units) of the region bounded by  is The area (in square units) of the region bounded by is

Anonymous User Maths Area 02 Apr, 2020 74 views

## The area bounded between the parabolas  and  , and the straight line y = 2 is The area bounded between the parabolas and , and the straight line y = 2 is

Anonymous User Maths Area 02 Apr, 2020 66 views

## The area bounded by the curves  and is The area bounded by the curves and is

Anonymous User Maths Area 02 Apr, 2020 71 views

## The area bounded by the curves y=cosx and y=sin x between the ordinates x=0 and The area bounded by the curves y=cosx and y=sin x between the ordinates x=0 and Anonymous User Maths Area 02 Apr, 2020 65 views

## The area under the curve  with boundaries as X-axis and the ordinates x = 0, x = 3 in sq. units is The area under the curve with boundaries as X-axis and the ordinates x = 0, x = 3 in sq. units is

Anonymous User Maths Area 02 Apr, 2020 69 views

## The area (in square units) bounded by the curves  , x-axis and lying in the first quadrant is The area (in square units) bounded by the curves , x-axis and lying in the first quadrant is

Anonymous User Maths Area 02 Apr, 2020 69 views

A body is thrown vertically up to reach its maximum height in t seconds. The total time from the time of projection to reach a point at half of its maximum height while returning (in seconds) is

Anonymous User Physics 02 Apr, 2020 102 views

Explain the following
a) Although Au is soluble in aqua-regia, Ag is not
b) Zinc and hot copper is used for recovery of Ag from the complex [Ag(CN)2]–

c) Aluminium metal is frequently used as a reducing agent for extraction of metal such as chromium manganese etc.

d) Partial roasting of sulphide ore is done in the metallurgy of copper.

Anonymous User Chemistry Matallurgy 31 Mar, 2020 75 views

A person is to count 4500 currency notes. Let an denote the number of notes he counts in the nth minute.If a1 =a2 =...=a10 =150 and a10, a11,....arein an A.P. with common difference –2, then the time taken by him to count all notes is

Anonymous User Maths Sequences and Series 31 Mar, 2020 63 views

The line L given by passes through the point (13, 32). The line K is parallel to L and has the equation .Then the distance between L and K is?

Anonymous User Maths Linear Programming 31 Mar, 2020 70 views