10th grade Convert between Celsius, Kelvin and Fahrenheit worksheet

Convert between Celsius, Kelvin and Fahrenheit

Grade 10 Science Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Ari's balloon holds 2 L at 20 °C. At constant pressure, what is its volume at 60 °C, to 0.01 L?
2. 2.

   Bo's balloon holds 3 L at 27 °C. At constant pressure, what is its volume at 127 °C, to 0.01 L?
3. 3.

   Esme's balloon holds 5 L at 10 °C. At constant pressure, what is its volume at 100 °C, to 0.01 L?
4. 4.

   A rigid tank of gas starts at 27 °C. Its pressure doubles. What is the new temperature, Kira?

   • 600 °C, since doubling 300 gives 600 and the unit is unchanged
   • 54 °C, since doubling 27 °C gives 54 °C in the same way
   • 327 °C, since doubling 300 K gives 600 K
5. 5.

   A gas doubles in volume when warmed from 0 °C to 273 °C. Does it double again from 100 °C to 373 °C, Luz?

   • Yes: both rises are 273 °C, so the volume doubles again from the new start
   • No: 100 °C is 373 K, so doubling needs 746 K; 373 °C is only 646 K
   • Yes: a rise of 273 °C doubles a gas's volume from any start

6. Read this first

   Volume of a gas at constant pressure (example data)

   temperature (°C)	volume (mL)
   −20	25.3
   0	27.3
   20	29.3
   40	31.3
   60	33.3
   80	35.3

7. 6.

   Extend the table's straight line downward. Where would the volume reach zero, Noah?

   • Below −400 °C, because gas volumes shrink more slowly when cold
   • At −27.3 °C, because the volume falls by 1 mL for each °C
   • Near −273 °C, where a straight line through the data reaches zero volume
8. 7.

   Pia predicts the 29.3 mL at 20 °C will halve, to 14.65 mL, at 10 °C. What does the line give?

   • No: it gives 19.3 mL, because the volume falls 1 mL per °C
   • No: 10 °C gives 28.3 mL, only about 3% less
   • Yes: 10 °C is half of 20 °C, so the volume halves
9. 8.

   Scale Y puts freezing water at 10 °Y and boiling water at 130 °Y. How big is a 30 °C warming in °Y, Ren?

   • 30 °Y, since a degree is a degree on any scale
   • 46 °Y, since the 10 °Y offset is added to 36
   • 36 °Y, since one °C equals 1.2 °Y
10. 9.

    On scale Y (freezing 10 °Y, boiling 130 °Y), a thermometer reads 50 °Y. What is that in °C, Tala?

    • 41.7 °C: divide by 1.2 but forget to subtract 10
    • 40 °C: subtract 10 but forget to divide by 1.2
    • 33.3 °C: subtract 10, then divide by 1.2
11. 10.

    Which equations need kelvins, Zee?

    • PV = nRT needs kelvins; q = mcΔT works with a change in °C or in K
    • q = mcΔT needs kelvins, but PV = nRT works with °C readings
    • Neither needs kelvins, since °C can replace K in any formula