5g of ethane is confined in a bulb of one litre capacity. The bulb is so weak that it will burst if the pressure exceeds 10 atm. At what temperature will the pressure of the gas reach the bursting value?

You are given the mass of ethane from where you can find the moles, which will be equal to 1/6. Now apply the gas equation,

PV=nRT, where P=10atm (given), V = 1 L (given), R = 0.0821, n= 1/6 and find the value of T which will be your answer