TNT (CH2(NO2)3CH3 ) is an explosive with the below given detonation reaction. By ignoring the volume of the solid product, what pressure will be exerted at 300 K in a confined space of 600 m³ if 10 kilomole of TNT detonates? (R = 0.082057 L .atm / (mol.K), Atomic masses: C:12, H:1, N: 14, O:16 ) %3D Hint: The space initial pressure was 1 atm. C6H2(NO2)3CH3 6C0 + 2.5H2 + 1.5N2 + C (s)

a) A 4.00L tank at 25.0° C is filled with 4.0 g of nitrogen monoxide (NO) and 8.3 g of sulfur hexafluoride gas (SF6). What is the mole fraction of sulfur hexafluoride? A) 0.17 B) 0.21 C) 0.48 D) 0.67 E) 0.30 F) 0.43 b) What is the ratio between the rates of effusion of sulfur hexafluoride and dinitrogen monoxide? A) (rate of SF6 effusion) = 4.87 x (rate of NO effusion) B) the rates are the same since they are at the same temperature C) (rate of SF6 effusion) = 2.21 x (rate of NO effusion) D) (rate of SF6 effusion) = 0.45 x (rate of NO effusion) E) (rate of SF6 effusion) = 0.21 x (rate of NO effusion)

The total energy of two colliding gas molecules is conserved because the Group of answer choices collision is inelastic. collision is elastic. collision intensity varies as temperature changes. collision occurs too rapidly for energy to be lost.

2. The pressure inside a 4.00 L cylinder of gas is 1.808 atm. If the gas was comnpressed to a pressure of 440.0 kPa, what would its volume become? (Assume constant T). Note: 1 atm= 101.325 kPa

10

When we study photochemical processes in the upper atmosphere, we need to know how frequently atoms and molecules collide. At an altitude of 20 km, T = 217 K and PN2= 0.050 atm (for this problem, assume only nitrogen moleculesare present). a)What is the mean free path of N2at an altitude of km? (= 0.43 nm2) b)How many collisions per second does a N2molecule make at an altitude of 20 km? c)What is the collision density, Z, under these conditions?

A Oi95l9 sample potassium reacts with exeess amccnits of Hydrochloric acid and it was colocted over B.0°L water, If. the to tal volume of hydrogen gas produced Cinu). The P Had at 35.0tc ら g3.8 torr, pressure uas 789,8 torr, find the is はK+2HCI 2 HCl -y 2 kCl + Hta