1 Gallon gasoline = 124,000 Btu
Tanker truck = 7500 gallons to 9900 gallons
124K*9K(standard tanke)=1 116 000 000 (1 billion btu)

A-bomb = 14 kilotons.
1 kiloton = 4.2 trillion joules.
4.2 trillion joules = 4.2 billion BTU
14*4.2b=59 billion BTU.

And that's a uranium based weapon, similar to current tac-nukes.
--------------------------------------------------------------------
810 calories (nutritional) in a stick of butter,
4 sticks to a pound
3240 calories(nutritional) in a pound of butter
3240k calories (scientific) in a pound of butter
1 calorie = 4.18400 joules
13 556 160 joules/pound butter

kg of TNT = 4.184×10^6 Joules
.45kg = 1 lb
.45*4.184*10^6
1 882 800 joules/pound tnt  ¶ 2:41 PM

 

The most common units for heat are

• BTU (Btu) - British Thermal Unit
• Calorie
• Joule

BTU - British Thermal Unit

The unit of heat in the imperial system - the BTU - is

• the amount of heat required to raise the temperature of one pound of water through 1^oF (58.5^oF - 59.5^oF) at sea level (30 inches of mercury).
• 1 Btu (British thermal unit) = 1055.06 J = 107.6 kpm = 2.931 10^-4 kWh = 0.252 kcal = 778.16 ft.lbf = 1.05510¹⁰ ergs = 252 cal = 0.293 watt-hours

An item using one kilowatt-hour of electricity generates 3412 Btu.

Calorie

A calorie is commonly defined as

• the amount of heat required to raise the temperature of one gram of water 1^oC
• the kilogram calorie, large calorie, food calorie, Calorie (capital C) or just calorie (lowercase c) is the amount of energy required to raise the temperature of one kilogram of water by one degree Celsius
• 1 kcal = 4186.8 J = 426.9 kp.m = 1.163 10^-3 kWh = 3.088 ft.lbf = 3.9683 Btu = 1000 cal

Be aware that alternative definitions exists - in short:

• Thermochemical calorie
• 4 °C calorie
• 15 °C calorie
• 20 °C calorie
• Mean calorie
• International Steam Table calorie (1929)
• International Steam Table calorie (1956)
• IUNS calorie (Committee on Nomenclature of the International Union of Nutritional Sciences)

The calorie is outdated and commonly replaced by the SI-unit Joule.

Joule

The unit of heat in the SI-system the Joule is

• a unit of energy equal to the work done when a force of one newton acts through a distance of one meter
• 4.184 joule of heat energy (or one calorie) is required to raise the temperature of a unit weight (1 g) of water from 0^oC to 1^oC, or from 32^oF to 33.8^oF
• 1 J (Joule) = 0.1020 kpm = 2.778 10^-7 kWh = 2.389 10^-4 kcal = 0.7376 ft.lbf = 1 kg.m²/s² = 1 watt second = 1 Nm = 1 ft.lb = 9.478 10^-4 Btu

  ¶ 2:40 PM