An airbag generates 1.8g of nitrogen gas (n2, molar mass= 28.0 g/mol) at a pressure of 101.3 kpa and a temperature of 34°c. what volume, in liters, will it occupy?

1.62 L.

Explanation:

where, P is the pressure of the gas in atm (P = 101.3 kPa/101.325 ≅ 1.0 atm)  .

V is the volume of the gas in L (V = ??? L).

n is the no. of moles of the gas in mol.

R is the general gas constant (R = 0.082 L.atm/mol.K),

T is the temperature of the gas in K (T = 34.0 °C + 273.15 = 307.15 K).

The volume of the gas = nRT/P.

P = 1.0 atm, V = ??? L, R = 0.082 L.atm/mol.K, n = mass/molar mass = (1.8 g)/(28.0 g/mol) = 0.0642 mol.

∴ V = nRT/P = (0.0642 mol)(0.082 L.atm/mol.K)(307.15 K)/(1.0 atm) = 1.62 L.

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

elements make up everything, and they combine to make compounds.

the answer is c