Fill in the blanks:
$(i)$ The conversion of graphite into diamond is a ........ process.
$(ii)$ $1 \text{ calorie} = ........ \text{ Joules}$.
$(iii)$ Work done by the system can be calculated by the equation ........ .
$(iv)$ The change in heat energy during a chemical reaction at constant volume is called ........ .
$(i)$ The conversion of graphite into diamond is a ........ process.
$(ii)$ $1 \text{ calorie} = ........ \text{ Joules}$.
$(iii)$ Work done by the system can be calculated by the equation ........ .
$(iv)$ The change in heat energy during a chemical reaction at constant volume is called ........ .
(N/A) $(i)$ Endothermic (or non-spontaneous at standard conditions)
$(ii)$ $4.184 \ J$
$(iii)$ $W = -P_{ext} \Delta V$
$(iv)$ Change in internal energy $(\Delta U)$
$(ii)$ $4.184 \ J$
$(iii)$ $W = -P_{ext} \Delta V$
$(iv)$ Change in internal energy $(\Delta U)$
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