The bond energy is the energy required to
break one mole of similar bonds
Heat of combustion of carbon monoxide at constant volume and at 17° C is - 67710 cal. The heat of combustion at constant pressure is
- 68000 cal
Which is correct for an endothermic reaction ?
∆H is positive
For the gaseous reaction involving the complete combustion of iso-butane
∆H > ∆E
Heat liberated with 100 mL of 1 N NaOH is neutralised by 300 mL of 1 N HCl
Heat required to raise the temperature of 1 mole of a substance by 1° is called
molar heat capacity
If ∆G for a reaction is negative, you infer that the change is
What will be the value of ∆G for ice at 8°C temperature ?
One mole of which of the following has the highest entropy?
Gibb's free energy G, enthalpy H and entropy S are interrelated as in
G = H - TS
Anu can complete a piece of work in 22 days. Shama is 60% more efficient than Anu. How many days does Shama alone take to complete the same piece of work?Watch Solution
Two pipes P and Q, when opened alone can fill the tank in 20 and 30 hours respectively. If both pipes are opened together, then in how many hours will the tank be filled?Watch Solution
A, B and C can individually complete a task in 24 days,16 days and 32 days respectively. If A and C start the work and worked for 6 days and left, then the number of days required by B to complete the remaining task, is :Watch Solution
4 men and 5 women can complete a work in 15 days, whereas 9 men and 6 women can do it in 10 days. To complete the same work in 7 days, how many women should assist 4 men?Watch Solution
Two pipes can fill a tank in 10 and 14 minutes respectively. A third pipe can empty the tank at the rate of10 liters/minute. If all the pipes working together can fill the empty tank in 8 minutes, what is the capacity of the tank?Watch Solution