Scale Conversions

Q. Explain thermal expansion with suitable examples.

Q.

On an X temperature scale, water freezes at $-{125.0}^{\circ }$X and boils at ${375.0}^{\circ }$X. On a Y temperature scale, water freezes at $-{70.0}^{\circ }$Y and boils at $-{30.0}^{\circ }$Y. The value of temperature on X scale equal to the temperature of ${50.0}^{\circ }$Y on Y scale is:

1. ${455.0}^{\circ }$X

2. ${125.0}^{\circ }$X

3. ${1500.0}^{\circ }$X

4. ${1375.0}^{\circ }$X

Q.

What is STP? Give the values of temperature and pressure at STP?

Q. Temperature of a body can be measured on different scales, Celcius (C) and Fahrenheit (F).When thermometers measuring ${}^{0}C$ and ${}^{0}F$ were used to measure temperatures of various bodies, the following table was obtained

	${}^{0}C$	${}^{0}F$
Ice	0	32
Boiling water	100	212
Hot water	70	158
Tap water	25	$F_1$

Then $F_1$ is

1. 77
2. 57
3. 91
4. 88