Question: 2.0 mol of an ideal monatomic gas is at 0 degrees C. Themolar mass of

Question

Question: 2.0 mol of an ideal monatomic gas is at 0 degrees C. Themolar mass of te gas is 4g/mol. a). The gas is then heated to be twice as hot. What is its new temperature? b). If the gas is held at atmospheric pressurethroughout the process, what is the change in volume of thegas? I don"t know where to start. Please help...I needto know what equations to use as well as the steps and theanswers. Thank you. Question: 2.0 mol of an ideal monatomic gas is at 0 degrees C. Themolar mass of te gas is 4g/mol. a). The gas is then heated to be twice as hot. What is its new temperature? b). If the gas is held at atmospheric pressurethroughout the process, what is the change in volume of thegas? I don"t know where to start. Please help...I needto know what equations to use as well as the steps and theanswers. Thank you.

Explanation / Answer

    here we use     P V = n R T     n = 2.0 mol     initial temperature     Ti = 273 K (a)     as the gas is then heated to be twice as hot thenew temperature or     final temperature will be     Tf = 546 K (b)     here first we calculate the initial volumewith     Vi = n R Ti /Patm     where R = 8.31 J / (mol . K)     Ti = 273 K     Patm = 1.013 x 105 Pa     as V / T = constant     Vi / Ti = Vf /Tf    Vf = (Vi/ Ti) Tf     solve for the change in volume (Vf -Vi)

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