Physics - Heat and Temperature
Year 11 ATAR
🇬🇧
In Inglés
In Inglés
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Physics - Heat and Temperature - Marcador
Physics - Heat and Temperature - Detalles
Niveles:
Preguntas:
26 preguntas
| 🇬🇧 | 🇬🇧 |
| When increasing the internal energy only results in an increase in potential energy, the temperature does not change but the substance changes state. | Increasing internal energy |
| °C = 273.15K K = -273.15°C | Converting between degrees Celsius and Kelvin |
| If objects A and B are in thermal equilibrium with object C, then objects A and B are in thermal equilibrium with each other. | The zeroth law of thermodynamics |
| Q = ? m = 135 L = 135 kg c = 4200 J kg-1 K-1 ΔT = 70 – 20 = 50 K Q = mcΔT = 135 x 4200 x 50 = 28 350 000 J = 28 MJ | A hot water tank contains 135 L of water. Initially the water is at 20 ˚C. Calculate the amount of energy that must be transferred to the water to raise the temperature to 70˚C. |
| Q = ? m = 2.5 L = 2.5 kg Lwater = 3.34x10^5 J kg-1 Q = 8.35x10^2 kJ | How much energy must be removed from 2.5 L of water at 0˚C to produce a block of ice at 0 ˚C. Express your answer in kJ. |
| Q = ? Q = ? m = 50 ml = 50 g = 0.05 kg m = 0.05 kg c = 4180 J kg-1 K-1 L = 22.5 x 10^5 J kg-1 ΔT = 100 -20 = 80 K Q = 16 800 J Q = 112 500 J total Q = 129 300 J | 50 ml of water is heated from a room temperature of 20 ˚C to its boiling point at 100 ˚C . It is boiled at this temperature until it is completely evaporated. How much energy in total was required to raise the temperature and boil the water? |
| YES | Fridges |