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Heat of Reaction

45. The value...

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45. The value of Cp – Cv is 1.00R for a gas semple in state A and is 1.08R in state B. Compare between pressures and temperatures of the two states.

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Q. The value of

C_{p} - C_{v} = 1.00 R

for a gas in state

A

C_{p} - C_{v} = 1.06 R

in another state. If

P_{A}

P_{B}

denote the pressure and

T_{A}

T_{B}

denote the temperatures in the two states, then

Q. The value of C_p − C_vis 1.00 R for a gas sample in state A and 1.08 R in state B. Let p_A and p_B denote the pressures and T_A and T_B denote the temperatures of the states A and B, respectively. It is most likely that
(a) p_A < p_B and T_A > T_B
(b) p_A > p_B and T_A < T_B
(c) p_A = p_B and T_A < T_B
(d) p_A > p_B and T_A = T_B

Q. The value of

C_{p} - C_{v}

1.09 R

for a gas sample in state

A

1.00 R

B

T_{A}, T_{B}

denote the temperature and

P_{A}

P_{B}

denote the pressure of the states

A

B

respectively. Then:

Q. For hydrogen gas

C_{p} - C_{v} = a

and for oxygen gas

C_{p} - C_{v} = b

so the relation between

a

b

a = n b

n

H_{2}

c_{p} - c_{v} = a

O_{2}

c_{p} - c_{v} = b

c_{p}

c_{v}

are specific heats in

cal/g.K

at constant pressure and constant volume respectively, then select the correct relation between

a & b

.

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