Question 2 :
If there were no atmosphere, the average temperature on earth surface would be<br>
Question 3 :
When you combust $100.0\ g$ of propane at $500.K$ and $1.00\ atm$ in a closed container, you expected to collect $279\ L$ of carbon dioxide. Instead, when you collect the gas, it measures $651\ L$ in total.<br>Why have you collected more than your predicted, theoretical yield?
Question 5 :
A system where there is exchange of energy but not of mass is called _________ system.
Question 6 :
Which of the following is not a state function?<br/><b>a.</b> $U + PV$      <b>b.</b> $q + w$     <b>c.</b> $\cfrac { q_ {rev} }{ T }$       <b>d.</b> $q$<br/>
Question 10 :
Properties of substances like pressure, temperature and density, in thermodynamic coordinates are
Question 11 :
A closed vessel contains equal number of nitrogen and oxygen molecules at a pressure of $P\ mm$. If nitrogen is removed from the system, then the pressure will be?
Question 12 :
In thermodynamic equilibrium there are no net  ____________ flows of matter or of energy, either within a system or between systems.
Question 13 :
A gas absorbs $250J$ of heat and expands from $1$ litre to $10$ litre at constant temperature against external pressure of $0.5$ atm. The values of $q$, $w$ and $\triangle U$ will be respectively:
Question 14 :
For the process ${ H }_{ 2 }O(l) (1bar, 373K)\rightarrow H_2O(g)$, the correct set of thermodynamic parameters are:
Question 17 :
Water of mass $m_2$ = 1 kg is contained in a copper calorimeter of mass $m_1$  = 1 kg. Their common temperature t = $10^{0}C$. Now a piece of ice of mass $m_3$  = 2 kg and temperature is $-11^{0}C$ dropped into the calorimeter. Neglecting any heat loss, the final temperature of system is. [specific heat of copper = 0.1 Kcal/ kg$^{0}C$, specific heat of water = 1 Kcal/kg$^{0}C$, specific heat of ice = 0.5 Kcal/kg$^{0}C$, latent heat of fusion of ice = 78.7 Kcal/kg]
Question 18 :
<p class="wysiwyg-text-align-left">Assertion (A): A system is said to be closed if it can exchange energy but not matter. </p><p class="wysiwyg-text-align-left">Reason (R): Coffee in a stoppered thermos flask is an example of closed system.<br/></p>
Question 19 :
An insulated container of gas has two chambers separated by an insulating partition. One of the chambers has volume $V_1$ and contains ideal gas at pressure $P_1$ and temperature $T_1$. <br/>The other chamber has volume $V_2$ and contain same ideal gas at pressure $P_2$ and temperature $T_2$. If the partition is removed without doing any work on the gas, the final equilibrium temperature of the gas in the container will be:
Question 20 :
Use the given standard enthalpies of formation to determine the heat of reaction of the following reactions:<br>$TiCl_{4}(g) + 2H_{2}O(g) \rightarrow TiO_{2}(g) + 4HCl(G)$<br>$\triangle H_{f}^{\circ}TiCl_{4}(g) = -736.2\ kJ/mole\ \triangle H^{\circ}_{f} TiO_{2}(g) = -944.7\ kJ/mole$<br>$\triangle H_{f}^{\circ} H_{2}O(g) = -241.8\ kJ/mole\ \triangle H^{\circ}_{f} HCl(g) = -92.3\ kJ/mole$.