The Table Shows The Specific Heat Capacities Of Various Substances. How Much Energy Is Required To Raise The Temperature Of 5G Of Air By 10°C? Use The Table Below To Help You. (2023)

FAQs

How do you calculate energy from specific heat capacity? ›

The amount of heat gained or lost by a sample (q) can be calculated using the equation q = mcΔT, where m is the mass of the sample, c is the specific heat, and ΔT is the temperature change.

Answer and Explanation:

It will take 3 , 139.5 J o u l e s to change the temperature of 50.0 g of water by 15.0 ∘ C .

In this case, the mass is 2.0g, the specific heat capacity of water is 4.18J/g/K, and the change in temperature is 5.0°C=5K , therefore the energy needed to raise it is: 5×2×4.18=41.8J .

The equation for the amount of heat, Q , required to change the temperature of an object in a single phase is Q = m c Δ T , where m is the mass of the substance, c is the specific heat capacity of the substance, and Δ T is the change in temperature of the substance.

Energy = Power × Time. Q. How can we calculate the change in potential energy?

∴3360000 J of heat energy is required to convert 1 kg of ice into water at its meltinging point. Q. Heat energy required to melt 10 kg ice at its melting point will be _____. (The latent heat of fusion of water = 333.55 kJ kg−1).

Converting it to kJ, the heat required to raise the temperature of $100.0$ grams of water from ${25.0^0}C$ to ${50.0^0}C$ is $10.45kJ$ . Note: Water requires more heat to raise its temperature compared to other common substances.

or Q=100×1×(95−5)=9000cal=9kcal.

Therefore, heat energy released =5×4. 2×20+5×336=420+1680 =2100J.

Quantitative experiments show that 4.18 Joules of heat energy are required to raise the temperature of 1g of water by 1°C.

How much energy is needed to turn 1 gram of water at 100 degrees Celsius into water vapor? ›

It takes 100 calories to heat 1 g. water from 0˚, the freezing point of water, to 100˚ C, the boiling point. However, 540 calories of energy are required to convert that 1 g of water at 100˚ C to 1 g of water vapor at 100˚ C.

The specific heat of a substance is the amount of energy required to raise the temperature of 1 gram of the substance by 1oC. The symbol for specific heat is cp, with the p subscript referring to the fact that specific heats are measured at constant pressure.

A 'typical' home in a mild climate uses between 5,000 kWh and 30,000 kWh of energy a year for its heating. So how much does your home use? It's reasonable that 5,000 kWh corresponds to warmer regions and 30,000 kWh to cold regions. The former requires less and the latter requires more heating per month.

It is no wonder that heating processes (not including steam generation) consume about 5.2 quads (quadrillion Btu), which is nearly 17% of all energy used by industry. Heat derived from combustion of fossil fuels accounts for 92% of this energy; electricity use accounts for the remaining 8%.

In food and nutrition, energy is most often measured in kilocalories (kcal). One kilocalorie is the amount of heat required to raise the temperature of 1 kilogram (or 1 liter) of water, 1°C.

The formula below is used to calculate the amount of energy absorbed/released during calorimetry. q = mc∆T. where q = heat (in joules); m = mass (in grams); c = specific heat (in joules/grams • °C); ΔT = change in. temperature (i.e. final temp – initial temp) (in °C or K)

Capacitor energy formula

How do you estimate the energy, E, stored in a capacitor with a capacitance, C, and an applied voltage, V? It's equivalent to the work done by a battery to move charge Q to the capacitor. The resulting equation is: E = ½ × C × V².

The formula which links energy transferred, power and time, and the formula which helps you calculate the energy transferred is as follows: Energy transferred = power x time.

The specific internal energy (u) of a substance is its internal energy per unit mass. It equals the total internal energy (U) divided by the total mass (m). Example: Determine the specific internal energy of 12 lbm of steam if the total internal energy is 23,000 Btu.