Discuss the below in detail:
Q1: How does the number of atoms in a 26.5 gram gold ring compare to the number in a silver ring of the same mass?
Q2: Amoung the higest and lowest temperatures recorded are 136degrees F in the Libyan desert and -129Degrees F in the Antarctica. What are these in Celsius?
Q3: To make a secrue fit, rivets that are larger than the rivit hole are often used and the rivit is cooled, before it is placed in the hole. A steel rivit 1.871cm in diameter is to be placed in a hole 1.869cm in diameter at 20Degrees C. To what temperature must the rivit be colled if it is to fit the hole?
Q4: A storge tank contains 21.6kg of nitrogen (N2) at an absolute pressure of 3.65atm. What will the pressure be if the nitrogen is replaced by an equal mass of CO2?
Q5: Twelve molecules have the following speeds, given in units of km/s. 6,2,4,6,0,4,1,8,5,3,7,8. Calculate the rms speed?
Q6: To What tempature will 7700J of heat raise 3.0kg of water that in initially at 10.0degrees C?
Q7: An automobile cooling system holds 16L of water. How much heat does it absorbe if its tempature rises from 20 degrees C to 90 degrees C?
Q8: A 215g sample of a substance is heated to 330 degrees C and then plunged into a 105g aluminum calorimeter cup containg 165g of water and a 17g glass thermometer at 12.5 degrees C. The final temp. is 35.0 degrees C What is the specific heat of the substance? (assume no water boils away)
Q9: During exercise, a person may give off a 180kcal of heat in 30 min. by evaporation of water from the skin. How much water is lost?
Q10: Calculate the rate of heat by conduction, assuming that there are strong gusty winds and the external temp is -5degrees C. Glass window 2.0m x 1.5 m in area and 3.2mm thick inner and outer surface are 15.0degreesC and 14.0 degrees C
Q11: One end of a 33cm long aluminum rod with a diameter of 2.0cm is kept at 460 degrees C. and the other is immersed in water at 22 degrees C. Calculate the heat conduction rate along the rod?