Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 15

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Earn 100

$10$ lit of water at $25 ° C$ was heated upto $75 ° C$ at constant pressure then calculate heat supplied. (If $ρ = 1$ $gm / mL$ and $Cp = 4.2 {Jk}^{- 1} {kg}^{- 1}$ and $C_{p}$ is not axis varies at this temperature internal).

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Important Questions on Thermodynamics

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 16

7.5 KJ

heat is added to a closed system and its internal energy decreases by

12 KJ .

So, _____ of work is done _____ the system. For a new process, if the work is zero, then _____ of heat is ____ for the same changes in state of system.

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 17

The work done during the expansion of a gas from a volume of

4 {dm}^{3}

to

6 {dm}^{3}

against a constant external pressure of

3

atm, is:

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 18

In which process, net work done by an ideal gas is zero:

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 19

1

mole of ideal gas is expanded isothermally and reversibly from

10 L

to

100 L .

Which of the following options is/are incorrect for the process:

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 20

$P - V$ plots for two gases during an adiabatic process are given in the figure:

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Plot $A$ and plot $B$ should correspond to: (Assume ideal behaviour).

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 21

An ideal gas with

C_{v} = 3 R

expands adiabatically into a vacuum thus doubling its volume. The final temperature is given by:

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 22

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For this cyclic process change in enthalpy of ideal gas is:

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Alpha Question Bank for Medical: Chemistry>Chapter 4 - Thermodynamics>Exercise 1>Q 23

The work done by a system is

8

joule, when

40

joule heat is supplied to it. What is the change in internal energy of system?