one word answer is given for the following definitions mark

One word answer is given for the following definitions. Mark the one which is incorrect.

A. The process in which temperature remains constant : Isobaric

B. The process in which volume remains constant : Isochoric

C. The relation between $$\Delta H$$ and $$\Delta U$$ when all the reactants and products are solid : $$\Delta H = \Delta U$$

D. The relation between $$\Delta G,\Delta H$$ and $$\Delta S:$$
$$\Delta G = \Delta H - T\Delta S$$

Answer : The process in which temperature remains constant : Isobaric

Solution :
In isothermal process, temperature remains constant.

Releted MCQ Question on
Physical Chemistry >> Chemical Thermodynamics

Releted Question 1

The difference between heats of reaction at constant pressure and constant volume for the reaction : $$2{C_6}{H_6}\left( l \right) + 15{O_{2\left( g \right)}} \to $$ $$12C{O_2}\left( g \right) + 6{H_2}O\left( l \right)$$ at $${25^ \circ }C$$ in $$kJ$$ is

A. $$-$$ 7.43

B. $$+$$ 3.72

C. $$-$$ 3.72

D. $$+$$ 7.43

View Answer

Releted Question 2

For which change $$\Delta H \ne \Delta E\,:$$

A. $${H_{2\left( g \right)}} + {I_{2\left( g \right)}} \to 2HI\left( g \right)$$

B. $$HC{\text{l}} + NaOH \to NaC{\text{l}}$$

C. $${C_{\left( s \right)}} + {O_{{2_{\left( g \right)}}}} \to C{o_{{2_{\left( g \right)}}}}$$

D. $${N_2}\left( g \right) + 3{H_2}\left( g \right) \to 2N{H_3}\left( g \right)$$

View Answer

Releted Question 3

$${\text{The}}\,\Delta H_f^0\,{\text{for}}\,C{O_2}\left( g \right),\,CO\left( g \right)\,$$ and $${H_2}O\left( g \right)$$ are $$-393.5,$$ $$-110.5$$ and $$ - 241.8\,kJ\,mo{l^{ - 1}}$$ respectively. The standard enthalpy change ( in $$kJ$$ ) for the reaction $$C{O_2}\left( g \right) + {H_2}\left( g \right) \to CO\left( g \right) + {H_2}O\left( g \right)\,{\text{is}}$$

A. 524.1

B. 41.2

C. -262.5

D. -41.2

View Answer

Releted Question 4

In thermodynamics, a process is called reversible when

A. surroundings and system change into each other.

B. there is no boundary between system and surroundings.

C. the surroundings are always in equilibrium with the system.

D. the system changes into the surroundings spontaneously.

View Answer

One word answer is given for the following definitions. Mark the one which is incorrect.

Releted MCQ Question on
Physical Chemistry >> Chemical Thermodynamics

The difference between heats of reaction at constant pressure and constant volume for the reaction : $$2{C_6}{H_6}\left( l \right) + 15{O_{2\left( g \right)}} \to $$ $$12C{O_2}\left( g \right) + 6{H_2}O\left( l \right)$$ at $${25^ \circ }C$$ in $$kJ$$ is

For which change $$\Delta H \ne \Delta E\,:$$

In thermodynamics, a process is called reversible when

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Chemical Thermodynamics

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One word answer is given for the following definitions. Mark the one which is incorrect.

Releted MCQ Question on Physical Chemistry >> Chemical Thermodynamics

The difference between heats of reaction at constant pressure and constant volume for the reaction : $$2{C_6}{H_6}\left( l \right) + 15{O_{2\left( g \right)}} \to $$ $$12C{O_2}\left( g \right) + 6{H_2}O\left( l \right)$$ at $${25^ \circ }C$$ in $$kJ$$ is

For which change $$\Delta H \ne \Delta E\,:$$

In thermodynamics, a process is called reversible when

Practice More Releted MCQ Question on Chemical Thermodynamics

Practice More MCQ Question on Chemistry Section

Releted MCQ Question on
Physical Chemistry >> Chemical Thermodynamics

Practice More Releted MCQ Question on
Chemical Thermodynamics