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1. Inside a rigid container, a mixture of three ideal gases with mass fractions of 30% N2, 50% O2 and 20% CO2 has a total mole of 10 kmol.
a. What's the molar mass of the mixture?
b. What are the specific heats (cv and cp) of the mixture?
c. Determine the heat transfer needed to raise the temperature of this mixture from 0 °C to 50 °C.
2. An insulated rigid tank is divided into two compartments by a partition, as shown in the following figure. One compartment contains 2 kg of oxygen gas at 50°C and 200 kPa, and the other compartment contains 3 kg of nitrogen gas at 30°C and 350 kPa. Now the partition is removed, and the two gases are allowed to mix. Determine (a) the mixture temperature and (b) the mixture pressure after equilibrium has been established.
A 45 kg machine is mounted on a spring of stiffness 8x10^5 N/m. When the machine is set to vibration by a 32 Hz excitation, the machine's amplitude is measured as 1.5mm. What is the amplitude of the excitation provided to the machine? Ignore damping ..
a how deep must a submarine be immersed in sea water specific gravity is 1.03 for its shell to experience an absolute
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a process occurs taking 5kg of mass from state a to state b. the work during this adiabatic process is 5kj. the change
Calculate the theoretical density of FCC Copper, which has an atomic radius of 0.128 nm and the atomic weight of 63.55 g/mol.
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