Kinetic Theory Of Matter Worksheet (Page 3 of 4) in pdf

Kinetic Theory Of Matter Worksheet Page 3

The graph was drawn from data collected as a substance was heated at a constant rate. Use the graph

to answer the following questions.

At p oint A , t he b eginning o f o bservations, t he s ubstance e xists i n a s olid s tate. M aterial i n t his p hase h as

_________________ v olume a nd _ ________________ s hape. W ith e ach p assing m inute, _ ________________ i s a dded t o t he

substance. T his c auses t he m olecules o f t he s ubstance t o _ ________________ m ore r apidly w hich w e d etect b y a

________________ r ise i n t he s ubstance. A t p oint B , t he t emperature o f t he s ubstance i s _ _________°C. T he s olid

begins t o _ _______________. A t p oint C , t he s ubstance i s c ompletely _ ______________ o r i n a _ ______________ s tate.

Material i n t his p hase h as _ ________________ v olume a nd _ _______________ s hape. T he e nergy p ut t o t he s ubstance

between m inutes 5 a nd 9 w as u sed t o c onvert t he s ubstance f rom a _ _________________ t o a _ ________________.

Between 9 a nd 1 3 m inutes, t he a dded e nergy i ncreases t he _ ___________________ o f t he s ubstance. D uring t he

time f rom p oint D t o p oint E , t he l iquid i s _ ___________________. B y p oint E , t he s ubstance i s c ompletely i n t he

________________ p hase. M aterial i n t his p hase h as _ _________________ v olume a nd _ __________________

shape. T he e nergy p ut t o t he s ubstance b etween m inutes 1 3 a nd 1 8 c onverted t he s ubstance f rom a

_______________ t o a _ ______________ s tate. T his h eat e nergy i s c alled t he l atent h eat o f v aporization. ( An

interesting f act.) B eyond p oint E , t he s ubstance i s s till i n t he _ __________________ p hase, b ut t he m olecules

are m oving _ ____________________ a s i ndicated b y t he i ncreasing t emperature.

Substance

Melting p oint

Boiling p oint

Bolognium

20 ° C

100 ° C

Unobtainium

40 ° C

140 ° C

Foosium

70 ° C

140 ° C

Which o f t hese t hree s ubstances w as l ikely u sed i n t his p hase c hange e xperiment? _ _______________________

Explain:

Kinetic Theory Of Matter Worksheet Page 3