Yuniti ea mocheso ke khalori (ka khutsufatso ea kal). Khalori ke tekanyo ea mocheso o hlokahalang ho phahamisa mocheso oa gram e le 'ngoe ea metsi ka 1 C ( ho tloha ho 14,5 o C ho isa ho 15,5 o C). Palo ea mocheso o hlokahalang e fapana bakeng sa mocheso o fapaneng oa metsi . Bakeng sa mocheso o tšoanang, keketseho ea 1 C mochesong oa metsi e etsahala feela pakeng tsa 14,5 o C le 15,5 o C. Yuniti ea mocheso e sebelisoang hangata, haholo-holo ho hlalosa boleng ba matla a lijo, ke kilocalorie (kcal). 1 kcal = 1000 calories. Lebitso le leng la 1 kcal = 1 Calorie (motse-moholo K). Yuniti ea mocheso bakeng sa tsamaiso ea Brithani ke Btu (yuniti ea mocheso ea Brithani). 1 Btu = tekanyo ea mocheso o hlokahalang ho phahamisa mocheso oa ponto e le 'ngoe ea metsi ka 1 F₂ ( hantle ho tloha ho 63 o F ho isa ho 64 o F₂).
Mocheso o amana le matla, kahoo re hloka ho utloisisa kamano pakeng tsa diyuniti tsa mocheso le diyuniti tsa matla. Ho latela diteko tse entsweng ke Joule le bo-rasaense ba bang, ho fumanwe hore di-Joules tse 4,186 tsa mosebetsi di lekana le khalori e le nngwe ya mocheso.
Khalori e le 'ngoe = 4,186 Joule
1 kcal = 1000 khalori = 4186 Joule
1 Btu = 778 ft.lb = 252 calories = 1055 Joule
(Khalori e le 1 = 4,186 Joules le 1 kcal = 4186 e bitsoa mocheso oa mechine)
Mohlala oa potso ea mocheso oa mechini
1. 2 kcal (lik'hilojule) = …..lik'hilojule?
Puisano
1 kcal = 1000 lik'hilojule
2 kcal = 2 (lik'hilojule tse 1000) = 2000 lik'hilojule
2. Likhalori tse 4 = ….. lik'hilojule?
Puisano
1 Khalori (kakaretso K) = 1 kcal = 1000 khalori
Likhalori tse 4 = 4 (likhalori tse 1000) = likhalori tse 4000
3. Likhalori tse 10 = ….. Lijoule?
Puisano
Khalori e le 'ngoe = 4,186 Joule
Likhalori tse 10 = 10 (4,186 Joule) = 41,86 Joule
4. 5 kcal = ….. Lijoule?
Puisano
1 kcal = 1000 khalori = 4186 Joule
5 kcal = 5 (4186 Joule) = 20930 Joule
5. Lijoule tse 2000 = ….. kcal ?
Puisano
4186 Joule = 1 kcal
8372 Joule = 8372 / 4186 = 2 kcal
2000 Joule = 2000 / 4186 = 0,4777 kcal
