Atividade 2 mudança de estado físico
Quiz
•
Physics
•
10th Grade
•
Practice Problem
•
Hard
João Vitor Castioni
Used 14+ times
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36 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Na tabela, é possível ler os valores do calor específico de cinco substâncias no estado líquido, e no gráfico é representada a curva de aquecimento de 100 g de uma dessas substâncias.
A curva de aquecimento representada é a?
da Agua
da acetona
álcool etílico
do benzeno
do ácido acético
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual a variação de temperatura?
74,5°C
74,5°F
80°C
5,5°C
100°C
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
quanto de calor foi necessário fornecer para se ter uma variação de temperatura de 74,5°C?
3203,5 calorias
4000 calorias
4500 calorias
1532 calorias
8535 calorias
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual o calor específico da substância em ?
0,43
1,55
1,53
2,51
0,25
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Um bloco de 600 g de prata, inicialmente a 20 °C, é aquecido até 70 °C, ao receber 1 680 calorias. Qual o calor específico da prata?
0,056
0,075
0,56
0,75
1,56
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Quanto tempo foi necessário para elevar a temperatura da substância até 40°C?
100 segundos
100 minutos
100 horas
10 segundos
100 dias
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Uma fonte térmica de potência constante fornece 50 cal/min para uma amostra de 100 g de uma substância.
O gráfico fornece a temperatura em função do tempo de aquecimento desse corpo. Qual o valor do calor específico do material dessa substância?
0,25
0,30
0,40
0,50
0,60
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