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Heat always flows from a body at a higher temperature to a body at a lower temperature, according to the law. This law applies to all sorts of heat engine cycles, including Otto, Diesel, and others, as well as all types of working fluids. This law has aided the advancement of modern cars Refrigerators and heat pumps based on the Reversed Carnot Cycle are another implementation of this concept. You must give external effort if you wish to transmit heat from a lower temperature body to a higher temperature body. Heat creates work in the original Carnot Cycle, whereas work is given to transport heat from a lower temperature reservoir to a higher temperature reservoir in the Reversed Carnot Cycle. According to these examples give another application of the second law of thermodynamics to real life situation.
Make a claim:
Provide evidences:
The owner of the factory that sells a particular bottled fruit juice claimed that the
average capacity of their product is 250 ml. To test the claim, a consumer group gets
a sample of 100 such bottles, calculates the capacity of each bottle, and then finds
the mean capacity to be 248 ml. The standard deviation s is 5 ml. Use α = 0.03. Will
you reject or not to reject the claim.
Balance the following redox reactions.
KCO3 + Br ⟶ KBr + KBrO3 + CO2
Dilute nitric acid reacts with copper to form copper (II) nitrate, nitrogen monoxide and water Zinc reacts with sodium chromate in a sodium hydroxide solution to form NaZnO2, NaCrO2, and H2O
A group of students got the following scores in a test: 6, 9, 12, 15, 18, and 21. Consider samples of size 3 that can be drawn from this population.
A. List all the possible samples and the corresponding mean.
B. Construct the sampling distribution of the sample means.
Polarized glasses counter the glare from metallic surfaces by not allowing light of a particular orientation to pass through.True or False
Frame A is stationary. A ball is fired in the x-direction with a speed of 5 m/s. If Frame
B is moving along the same direction as the ball with a speed of 11 m/s, in which
reference frame is the ball moving faster?
What are lactams? Write the structures of -butyrolactam and -valerolactam and give their
IUPAC names.
How many moles of HCl will react with 18.13g of SrO?
SrO + 2HCl ------> + H2O
Show the solution
How many grams of H2O will be produced by the combustion of 73.56 grams of C2H4?
C2H4 + 3O2 ------> 2CO2 + 2H2O
Show the solution.
#339914 on Dec 2023