X(g) + 3Y(g) ---- 2z(g) H = +ve. if the reaction above takes place at room temperature, the G will be

A given amount of gas occupies 10.0dm\(^3\) at 4atm and 273°C. The number of moles of the gas present is?

[Molar volume of gas at s.t.p = 22.4dm\(^3\)]

According to Charles' law, the volume of a gas becomes zero at

A substance that is used as a ripening agent for fruits is

The Sulphide which is insoluble in dilute hydrochloric acid is