Solve the following problems. Indicate the complete solution.

1. Two trials were performed in an experiment to determine the latent heat of vaporization(Lv) of water

at 100°C. The values of Lv of water obtained were 532 cal/g and 536 cal/g. Find the percent difference

between the two values.

2. Referring to problem #1, find the percent error for each measurement if the accepted value of Lv of

water at 100°C is 540cal/g.

3. During an experiment in a physics laboratory class, a group of five students was asked to measure the

period of a simple pendulum. Their measurements were as follows; 2.3s, 2.4s, 2.2s, 2.5s and 2.1s.

Determine the

a. mean

b. variance

c. standard deviation

d. measured period of the pendulum​

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