(∆H −∆U) for the formation of carbon monoxide (CO) from its elements at 298 K is
(R = 8.314 J K–1 mol–1)
–1238.78 J mol–1
1238.78 J mol–1
–2477.57 J mol–1
2477.57 J mol–1
A.
–1238.78 J mol–1
∆H −∆U =∆ngRT
= (-1 x 8.314 x 298)/2
= - 1238.78
What do you understand by the terms: the system and surroundings?
Classify the following into different types of systems:
(i) Tea placed in a cup
(ii) Tea placed in a tea-pot
(iii) Tea placed in a thermosflask.
Define a closed system.
Define an isolated system.
Define intensive properties.
Define extensive properties.
Why all living systems need to be 'open systems'?
Define state variables of a system.
From thermodynamic point of view, to which system the animals and plants belong?
What is a state function?
Mock Test Series
