Search & Filtering
bar to 1.00 bar at a constant temperature of 298 K. (b) Calculate the work done if instead the gas
in (a) is compressed reversibly from 1.00 bar to 5.00 bar at the same temperature. (c) How do the
work values in (a) and (b) in magnitude and sign?
1. Calculate q, w, ∆U and ∆H if 1.65 mol of an ideal gas with Cv = R 3/2 undergoes a reversible adiabatic expansion from an initial volume Vi = 7.75 m3 to a final volume Vf = 20.5 m3 . The initial temperature is 300 K.
2. 2.25 moles of an ideal gas at 35.6oC expands isothermally from an initial volume of 26.0 dm3 to a final volume of 70.0 dm3 . Calculate w for this process (a) for expansion against a constant external pressure of 1.00 x 105 Pa and (b) for a reversible expansion.
KMnO4 + 5FeCl2 + 8HCl =MnCl2 + 5FeCl3 + 4H2O + KCl
if 24.0 mol of FeCl2 and 13.0 mol KMnO4 are mixed with excess HCl, how many moles of MnCl2 can be formed
Bob runs into science one day it is hot so he takes off his shoes and leaves his goodies the instructions say to pour 10ML of chemical A into a beaker and then add 5G of chemical b to it. Bob pours 10ML of chemical A into the beaker. He realizes that it smells funny, so he sticks his nose in the beaker and takes a deep whiff he then dumps some of chemical B into the container the beaker overflows the bell rings and bob leave the lab. What are 3 things that bob should have done differently?
Silver crystalizes in an FCC structure. The edge length of its unit cell is 409 pm.
(a) What is the atomic radius of Ag in this Structure ?
(b) Calculate the density of Ag
A photon of 498 mm was emitted from a silicon atom. Calculate the energy of the atomic level and show that the atomic level are quantized
Write a rate law for the reaction
, The least common multiple LCM of the factors of the quadratic factor of the expression y=x3 + 6x2 – x – 3 , is ?
tan (22.5) can be expressed as
A. (1+20.5)1/2
B. (-1+20.5)
C. (2+20.5)1/2
D. None
#339914 on Dec 2023