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Sagot :
[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]
[tex]\qquad \tt \rightarrow \:mass = 11.42 \:\: grams [/tex]
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[tex] \large \tt Solution \: : [/tex]
[tex]\qquad \tt \rightarrow \: Q = ms\Delta T[/tex]
- [tex] \textsf{Q = heat evolved/absorbed = 501 J} [/tex]
- [tex] \textsf{m = mass in gram = ?} [/tex]
- [tex] \textsf{s = specific heat = 0.45} [/tex]
- [tex] \textsf{ΔT = change in temp = 120 - 22.5 =97.5°C} [/tex]
[tex] \large\textsf{Find m : } [/tex]
[tex]\qquad \tt \rightarrow \: 501 = m \sdot(0.45) \sdot(97.5)[/tex]
[tex]\qquad \tt \rightarrow \: 501 = m \sdot43.875[/tex]
[tex]\qquad \tt \rightarrow \: m = \dfrac{501}{43.875} [/tex]
[tex]\qquad \tt \rightarrow \: m \approx11.42 \: \: g[/tex]
Answered by : ❝ AǫᴜᴀWɪᴢ ❞
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