Question

Pls help ty so much!

Answer 1

$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \:mass = 11.42 \:\: grams$

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$\large \tt Solution \: :$

$\qquad \tt \rightarrow \: Q = ms\Delta T$

• $\textsf{Q = heat evolved/absorbed = 501 J}$

• $\textsf{m = mass in gram = ?}$

• $\textsf{s = specific heat = 0.45}$

• $\textsf{ΔT = change in temp = 120 - 22.5 =97.5°C}$

$\large\textsf{Find m : }$

$\qquad \tt \rightarrow \: 501 = m \sdot(0.45) \sdot(97.5)$

$\qquad \tt \rightarrow \: 501 = m \sdot43.875$

$\qquad \tt \rightarrow \: m = \dfrac{501}{43.875}$

$\qquad \tt \rightarrow \: m \approx11.42 \: \: g$

Answered by : ❝ AǫᴜᴀWɪᴢ ❞