PLEASEEE HELPPP 4- (10 pts) Identify the unknown diatomic gas that effuses as fast as Cole)...
4- av pusi Identify the unknown diatomic gas that effuses as fast as CO(g) under the same temperature and pressure conditions.
Determine the molar mass of an unknown gas, if that unknown gas effuses via an orifice at a rate 5.42 x 10^-9 mol/s, and methane (CH4) effuses through the same orifice at the rate of 1.30 x 10^-8 mol/s, both gases having the same temperature and pressure.
PLEASEEE HELPPP ASAPP 3. (15 pts) A mixture of gases contains 4.96 grams of CH., 7.5 grams of CzHs, and 12.76 grams of CsHe. The total pressure is 1.50 atm. Calculate the partial pressure of each gas. A 10 pts
An unknown gas effuses through a barrier in 3.5 minutes. Under identical conditions it takes an equal amount of argon gas 2.8 minutes to effuse through the barrier. What is the molar mass of the unknown gas?
Question 8 3 pts An unknown gas effuses at a rate 3.72 times faster than Br2. What is the density (8/L) of the unknown gaps assuming conditions of STP. Report your answer to the third decimal place. • Previous Next
PLEASEEE HELPPP ASAPP 6- (15 pts) The temperature of a piece of silver (specific heat Se=0.031/8."C) with a mass of 362 g decreased by 58 °C when it was added to a 98.56 g sample of water (specific heat of water 5, 4.184 1/8 'C) in a constant pressure calorimeter of negligible heat capacity. What is the final temperature of water if its initial temperature was 23.4 "C?
the answer is E, but I don’t understand how. When I worked it out I got 8.0 g/mol - 1. O, effuses twice as fast as an unknown gas X at the same temperature. What is the molar mass of the unknown gas? A. 8.0 g/mol B. 64 g/mol C. 23 g/mol D. 16 g/mol .E.128 g/mol
1.Effusion is a process in which a gas escapes from a container through a small opening into a vacuum. In a pair of experiments, a sample of tetrafluoroethylene, C2F4, effuses at a rate of 4.6 × 10-6 mol/h and an unknown gas effuses at a rate of 4.0×10-6 mol/h. Identify the unknown gas. 2.Molecules in a sample of a gas move at a variety of speeds. Molecular speed can be described by the root-mean-square speed of the gas, which is...
11. A closed, diatomic gas system, m=0.025kg, has a pressure, P=1.35x105Pa and temperature, T=390.OK. The average mass per gas particle is 6.63x10-26kg. At constant volume, the temperature of the gas is then decreased to 275.OK. a. Calculate Vems for the gas at the end of the cooling process. b. Determine Q for this process. c. Determine the specific heat capacity of the gas under these conditions.
Under constant-volume conditions, 3100 J of heat is added to 1.9 moles of an ideal gas. As a result, the temperature of the gas increases by 78.5 K. How much heat would be required to cause the same temperature change under constant-pressure conditions? Do not assume anything about whether the gas is monatomic, diatomic, etc.