Hands-on exercise – Introduction to Functions

Put the lesson Introduction to Functions into practice by writing a program yourself.

Exercise field

A temperature conversion function

The problem

Melting points are usually listed in °C, but many formulas need kelvin. Instead of repeating + 273.15 everywhere, write a function that does the conversion.

Then use it to report the melting points of aluminium (660 °C), copper (1085 °C) and iron (1538 °C) in kelvin.

Your program should

Define a function celsius_to_kelvin(temperature_c) that returns the temperature in kelvin.
Call it three times and print each result with 2 decimal places, for example Aluminium: 933.15 K.

Expected output

Aluminium: 933.15 K
Copper: 1358.15 K
Iron: 1811.15 K

Your solution

Write your program below and press Run. Each run is checked against the expected output.

main.py

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Output

Press Run to see what your program prints.

Need help?

One possible solution. Other programs that print the same output are correct too.

solution.py

def celsius_to_kelvin(temperature_c):    """Convert a temperature from °C to K."""    return temperature_c + 273.15print(f"Aluminium: {celsius_to_kelvin(660):.2f} K")print(f"Copper: {celsius_to_kelvin(1085):.2f} K")print(f"Iron: {celsius_to_kelvin(1538):.2f} K")

Output

Aluminium: 933.15 K Copper: 1358.15 K Iron: 1811.15 K